Reinforcement for paper cores.



E. L. STUCK. REINFORCEMENT FOR PAPER CORES.

APPLICAYION FILED MAR. 30 1915- Pa-tented Apr. 25, 1916.

WITNESSES: I

Ill/l/E/VTOR Mardifiiw BKW.

A TTOR/VE Y8 t 1;; i it; s rncx, or no'rnscmnn, Wisconsin.

REINFORCEMENT FOE, PER CORES.

nicest.

of Rothschild, in the county of Marathon and State of Wisconsin, have made an ][m provement in llteinforcements for lPaper Cores, of which the following is a specification.

My invention is an expansible reinforcement and stifiener for the tubular paper cores or bodies on which paper rolls are wound. 'Such cores are usually made of paper or some like material, and are provided with reinforcements which are riveted in place and are hencenot detachable, but permanently associated with the core.

My expansible and detachable reinforcement is constructed of sheet metal, preferably steel, anddivided longitudinally, the opposing edges being bent to form hooked flanges which are directly opposite. each other and provide a keyway adapted to receive a wedge-shaped key, which, when driven in, expands the reinforcement so that it fits tightly in the paper core but may be readily contracted andrremoved by detachin the wedge.

11 he details of construction, arrangement and operation of parts comprising the invention are as hereinafter described and illustrated inthe accompanying drawing, in which, 5

Figure 1 is a longitudinal section showing my improvement-applied to a tubular paper core and the shaft on which it is'used. Fig. 2 is a perspective view of disassoeiated members of the invention. Fig. 3 is an enlar ed cross section on-the line33 of Fig. 1. ig.

4L is an enlarged cross sectionof the core- I with the body of the reinforcement applied therein. I

Tn Fig. 1 the numeral 1 indicates a shaft and 2 a mounted t ereon, the co re being such as par rolls are usually wound upon.v

l expansible steel reinforcement 3 shown in perspective in Fig.-2is practically a short hollow cylinder whose opposing edges are bent inwardly and at, such angles as to form-a key-way adapted to receive a wedge=shaped key 4, shown also" disassociated in Fig. 2: Such reinforcement is apat each end of the core 2, as shown in lied Fig. 1, and, upon drivingin the wed es 4,

the reinforcements are expanded and rmly Specification of Letters JPatent.

aper cylindrical tubular; core' Patented Apr. 25, with Application at March at, 1915 Serial no. 17,985.

support the body of the core 2. In order to connect the reinforcement and core with the shaft 1, a collar 5 is applied at each end of the core, the same being shown, in Figs. 1 and 2, as provided with a flanged head and a key-way 6 adapted to receive the flanges 3 of the reinforcement and the key or wedge 4. The collars 5 may be keyed to the shaft 1 in any required manner which will adapt it for convenient adjustment on the shaft. They thus form practically enlargements of the shaft at the ends of the core.

It is apparent that, upon inserting the reinforcements 3 in the ends of the core 2, and then driving in the wedges 4, the reinforcements are fully expanded and grip the core with the required force so as to-holdthe same rigidly expanded. Then, upon adjusting the collars 5 with the key-way 6 in coincidence with the flanges 3* of the reinforcements, the collars may be shoved up into the position indicated in Fig. 1. With the parts thus adjusted, the core may be revolved for winding paper upon it in the usual way.

ll desire'it understood that the expansible reinforcements which employ may be connected with the shaft by any other means than those I have illustrated, the main feature of my invention being the provision of a light, expansible reinforcement which may be made to fit tightly within the core and is easily detached therefrom. I thus provide a very efiicient, cheap, and easily applled and v shaft, and a collar mounted thereon and having a longitudinal key way, of a reinforcement comprising a metal tube divided longitudinally and having its separated edges bent inward and toward each other to form a key-way fitting in said collar keyway, and

a wedge adapted for insertion in such keyways, as described.

- EDWARD L. STUCK. Tn presence of- I Ronnn'r SCHMIDT, GARET RYAN. 

